i was on my laptop and killed explorer.exe in task killer by accident. didnt know what to do, the screen gone blank (only background). i turned off computer. windows wont load. tried startup repair and system restore. always an erronr. then i tried to check if anything was wrong with memory (system restore option) and computer turned off. when i turned it on it was processing something for cca. 15min and then reported this error- stop: c000021a fatal system error. the initial session process or system process terminated unexpectedly with a status of 0x00000000 (0xc0000001 0x001003a8). the system has been shut down.
please help me!!!